42485618 has 32 divisors (see below), whose sum is σ = 77739264. Its totient is φ = 16998912.

The previous prime is 42485617. The next prime is 42485621. The reversal of 42485618 is 81658424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42485617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31955 + ... + 33257.

It is an arithmetic number, because the mean of its divisors is an integer number (2429352).

Almost surely, 2^42485618 is an apocalyptic number.

42485618 is a deficient number, since it is larger than the sum of its proper divisors (35253646).

42485618 is a wasteful number, since it uses less digits than its factorization.

42485618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its digits is 61440, while the sum is 38.

The square root of 42485618 is about 6518.0992628219. The cubic root of 42485618 is about 348.9372333435.

The spelling of 42485618 in words is "forty-two million, four hundred eighty-five thousand, six hundred eighteen".